Alexandar Balj advanced when S. Popovic retired 6-4 4-0 in the M25 Split 1 q32. Alexandar Balj claimed a first win over S. Popovic in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-11-21 | M25 Monastir 10 | Q32 | hard | S. Popovic | 7-6(5) 6-2 |
| 2021-05-24 | M25 Kiseljak 1 | Q32 | clay | S. Popovic | 6-3 7-5 |